... GSM alarm system home security alarm system 1.high sensitivity 2.low false alarm rate 3.technical support 2012 !! indoor GSM alarm system home security alarm system wireless dial security burglar alarm ... alarm, fire alarm,gas leak, magnetic contact alarm, hall alarm, window alarm, balconyalarm, and perimeter alarm" 9.Two arm models:1)home alarm model: console music and voice alarm ... which is prompt and ...